CN107697041A - Vehicle line control brake system with brake pedal emulator override device - Google Patents
Vehicle line control brake system with brake pedal emulator override device Download PDFInfo
- Publication number
- CN107697041A CN107697041A CN201710587387.9A CN201710587387A CN107697041A CN 107697041 A CN107697041 A CN 107697041A CN 201710587387 A CN201710587387 A CN 201710587387A CN 107697041 A CN107697041 A CN 107697041A
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- China
- Prior art keywords
- brake pedal
- brake
- emulator
- mechanical linkage
- base component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/18—Connection thereof to initiating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4081—Systems with stroke simulating devices for driver input
- B60T8/4086—Systems with stroke simulating devices for driver input the stroke simulating device being connected to, or integrated in the driver input device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/404—Brake-by-wire or X-by-wire failsafe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/82—Brake-by-Wire, EHB
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Elements And Transmission Devices (AREA)
- Regulating Braking Force (AREA)
- Mechanical Control Devices (AREA)
Abstract
A kind of brake pedal device for actuated vehicle brake assemblies includes：Fixed structure, brake pedal emulation device assembly and emulator override device.Brake pedal emulation device assembly includes the brake pedal being operatively engaged with fixed structure and the brake pedal emulator being operatively engaged between the fixed structure and the brake pedal along center line.The brake pedal emulator is configured to the electrically operated brake assemblies.Emulator override device includes the mechanical linkage device being operatively engaged with the brake assemblies and is configured to the locking bolt for being selectively connected and disconnected from the mechanical linkage device from brake pedal emulation device assembly.The mechanical linkage device is configured to mechanically operate the brake assemblies via motion of the brake pedal along the center line at least in part.
Description
Technical field
The present invention relates to a kind of vehicle brake-by-wire (BBW) system, and being more particularly to one kind has emulator override device
Brake pedal emulator.
Background technology
Traditional vehicle servo brake system is typically to press brake pedal by driver to activate based on hydraulic fluid
System, the brake pedal typically activate master cylinder.Then, the master cylinder adds to a series of hydraulic fluid in hydraulic fluid circuits
Pressure, the hydraulic fluid circuits lead to each actuator with the brake of each vehicle proximity of vehicle.Such hydraulic braking
It can be realized by hydraulic regulation device assembly, the component, which realizes to lock, customizes dynamic, dragging control and vehicle stabilization enhancing spy
Sign.During locking, dragging the stable enhancement mode of control and operation, master cylinder is activated manually with hydraulic regulation device assembly institute
The supplement actuating pressure gradient of offer operates wheel braking.
When the piston of brake pedal pressing master cylinder is so that during motor car wheel brake, driver runs into pedal resistance.The resistance
It can be actual braking force at wheel, hydraulic fluid pressure, the mechanical resistance in supercharging/master cylinder, act on braking and step on
The synthesis of the power and other factors of return spring on plate.Therefore, during vehicle is operated, driver gets used to the resistance
Power, and it is expected to experience the resistance with the thing generally occurred.Unfortunately, traditional brake pedal feels it is non-adjustable
, so as to which the expectation of driver can not be met.
The latest development of brakes includes BBW systems, and the system is via electric signal actuated vehicle brake, the electric signal
Generally generated by Vehicle Controller.Braking torque can act on vehicle brake, without direct hydraulic link to reach system
Dynamic pedal.The BBW systems can be attaching system (i.e. and/or substitute the part of more conventional brake fluid system), or
Brake fluid system (i.e. pure BBW systems) can fully be substituted.In a type of BBW systems in office, it is necessary to simulate driver
The brake pedal " sensation " being accustomed to.
A kind of therefore it provides brake pedal emulation of brake pedal " sensation " that can simulate more conventional brakes
Device, and a kind of emulator of generally robust, are desired.
The content of the invention
In one exemplary embodiment of the present invention, a kind of brake pedal device for actuated vehicle brake assemblies,
The brake pedal device includes：Fixed structure；Brake pedal emulates device assembly, and it is included with the fixed structure operationally
The brake pedal of engagement and the system being operatively engaged between the fixed structure and the brake pedal along center line
Dynamic pedal emulator, and wherein, the brake pedal emulator is configured to the electrically operated brake assemblies；And emulator surpasses
Device is controlled, it includes the mechanical linkage device being operatively engaged with the brake assemblies and is configured to the mechanical linkage device
The locking bolt being selectively connected and disconnected from from brake pedal emulation device assembly, and wherein, the mechanical linkage device configuration
Mechanically to operate the brake assemblies via motion of the brake pedal along the center line at least in part.
In another exemplary embodiment of the present invention, a kind of vehicle includes BBW systems, and the BBW systems include braking
Component, brake pedal emulation device assembly and emulator override device.Brake pedal emulation device assembly is electrically connected to braking group
Part, and emulator override device is mechanically connected to brake assemblies.
From below in conjunction with the accompanying drawings of the invention illustrates, features described above of the invention, advantage and other features and
Advantage will be apparent.
Brief description of the drawings
In the detailed explaination of ensuing embodiment, only by example it can be seen that other features, advantage and tool
Body details, detailed description refer to drawings described below：
Fig. 1 is the schematic plan according to the vehicle with BBW systems as a non-limiting example of the present invention
Figure；
Fig. 2 is the schematic diagram of BBW systems；
Fig. 3 is the schematic diagram of the brake pedal device of BBW systems；
Fig. 4 is the curve map of the force curve of the power induction installation of the BBW systems of the function for brake-pedal travel；
Fig. 5 is the curve map for the damped coefficient curve for depicting the function for brake-pedal travel；
Fig. 6 be under BBW patterns and without brake pedal actuating when brake pedal device schematic diagram；
Fig. 7 be under BBW patterns and with brake pedal actuating when brake pedal device schematic diagram；
Fig. 8 be under mechanical standby mode and without brake pedal actuating when brake pedal device schematic diagram；
Fig. 9 be under mechanical standby mode and with brake pedal actuating when brake pedal device schematic diagram；
Figure 10 is the schematic diagram of the second embodiment of brake pedal device；
Figure 11 is the schematic diagram of the 3rd embodiment of brake pedal device.
Embodiment
It is merely exemplary in following illustrative in nature, purpose is not the limitation present invention and its application or purposes.Should
Work as understanding, in whole accompanying drawings, corresponding reference represents similar or corresponding part and feature.As made herein
, term module and controller refer to include application specific integrated circuit (ASIC), electronic circuit, processor (it is shared, special or
Cluster) and the memory of more than one software of execution or firmware program, combinational logic circuit, and/or function described by offer
Other suitable components.
According to the exemplary embodiment of the present invention, Fig. 1 is the schematic diagram of vehicle 20, and vehicle 20 (draws including dynamical system 22
Hold up, speed changer and differential mechanism), the wheel 24 (being illustrated as four) of multiple rotations and for example can be one (non-limiting)
The brakes 26 of BBW systems.BBW systems 26 may include the brake assemblies 28 of each wheel 24, brake pedal device 30 and
Controller 32.Dynamical system 22 adapt to it is at least one in driving moment 24, so as to promoting vehicle in plane (such as road)
20.BBW systems 26 are typically configured to the speed for slowing down vehicle 20 and/or the motion for stopping vehicle 20.Vehicle 20 can be automobile,
Either other any self-propelled or dragging the transports for being applied to transport load of truck, van, sport vehicle
Instrument.
Each brake assemblies 28 of BBW systems 26 may include brake 34 and be configured to operate the actuator of the brake
36.Brake 34 may include clamp (not shown), and can include disk brake, drum brake and others to appoint
The brake of what type.As nonrestrictive example, actuator 36 can be can be based on the electricity received from controller 32
Input signal activates the electric hydraulic brake actuator (EHBA) or other actuators of brake 34.More specifically, actuator 36
It can be or can be included in when receiving electric signal and can act and convert the energy into therewith control brake 34
Any kind of motor of the action of motion.Then, actuator 36 can be arranged to generation and for example be delivered to brake 34
The direct current generator of the electro-hydraulic pressure pressure of clamp.It is further contemplated that with understanding, brake 34 and/or actuator 36 may be used also
May include more conventional arts including redundancy activated apparatus, the redundancy activated apparatus, such as be stepped on positioned at brake 34 and braking
Between plate mechanical linkage device (such as push/pull cable, hydraulic package or other).
Controller 32 can include computer based processor (such as microprocessor) and computer-readable and writable
Storage medium.In operation, controller 32 can from brake pedal device 30 via represent driver's braking intention path (see arrow
It is first 38) to receive more than one electric signal.Then, controller 32 can handle the signal, and be based at least partially on those letters
Number electric command signal is exported to actuator 36 via path (see arrow 40).Based on any kind of vehicle condition, send to each
The command signal of wheel 24 can be identical or can be different signals for each wheel 24.Path 38,40 can be
Wireline pathway, wireless path or the combination of the two.
The non-limiting example of controller 32 can include the ALU for performing arithmetic sum logical operation；From storage
The ECU of device extraction, decoding and execute instruction；And the array element using multiple computing elements side by side.Controller 32
Other examples can include engine control module and application specific integrated circuit.It is further contemplated that and understand, controller
32, which can include redundant manipulator, and/or system, can include other redundance units to improve the reliability of BBW systems 26.
Reference picture 2 and Fig. 3, the brake pedal device 30 of brakes 26 include brake pedal emulation device assembly 41 and imitated
True device override device 43.Brake pedal emulation device assembly 41 be configured to simulate more conventional brake fluid system behavior and/or
Feel, and including brake pedal 42 and brake pedal emulator 44.Brake pedal 42 adapts to be activated by driver to operate system
Dynamic component 28.Brake pedal emulator 44 adapts to adjust and simulated the more conventional brake pedal feel that driver is experienced
(such as sensation of traditional brake fluid system).If BBW systems 26 are in malfunction, so that the system no longer carries
During for enough stopping powers, emulator override device 43 is for example constructed and arranged to be used as back-up system.
Brake pedal 42 can be supported by the fixed structure 46 of brake pedal device 30 and also supported with activity relationship.Such as
Illustrated in one non-limiting example, brake pedal 42 can be pivotally engaged on the first pivot 48 with fixed structure 46.System
Dynamic pedal emulator 44 can be supported and extended between brake pedal 42 and fixed structure 46.More specifically, emulator 44 can
To be pivotally engaged at the second pivot 50 with brake pedal, and can operationally be connect with fixed structure 46 at contact site 52
Touch.Second pivot 50 can be spaced from each other and substantially parallel with the first pivot 48.It is contemplated that and understand, brake pedal
42 can not be pivotally connected with fixed structure 46, but conversely can be with fixed structure sliding contact and having limited activity
Degree.It will also be appreciated that it can include the 3rd pivot with understanding, contact site 52, or can be emulator 44 and fixed knot
Sliding contact between structure 46, and there is limited active level.
Brake pedal emulator 44 can include damping unit 54 and power induction installation 56, with the operating process of driver
In, at least simulation it is expected or expect brake pedal 42 sensation.Damping unit 54 constructs and is arranged as generally producing resistance
Buddhist nun's power, the damping force are the functions for the speed that driver presses brake pedal 42.The generation of power induction installation 56 induction force (such as spring
Power), the induction force is the function of brake pedal displacement.Damping unit 54 and power induction installation 56 can be by controllers 32 individually
Or control in combination, so as at least simulate desired pedal sense.
One example of power induction installation 56 can be resiliently compressible disc spring.Other non-limits of power induction installation 56
Property example processed include being produced as the rubbery foam of directed varying forces of the function of brake pedal displacement, wavy spring or its
His device.One example of damping unit 54 includes having at least one internal void for the hydraulic fluid between chamber
Flowing and the hydraulic cylinder exchanged.In brake-pedal travel whole process by constant speed applications when the brake pedal, such damping
Device (and other) can be designed as applying constant force.One example of such " constant force " damping unit 54 can be tool
There is the hydraulic cylinder of single hole.Another non-limiting example of damping unit 54 includes being designed as with pedal displacement increase simultaneously
And increase the device of power when brake pedal 42 is pressed with constant speed.Such " directed varying forces " damping unit can be passive
And depend only on brake pedal position and/or displacement, or can be active and controlled device 32 controls." quilt
One example of dynamic directed varying forces " damping unit includes the hydraulic pressure for having multiple holes and exposing successively based on brake pedal position
Cylinder.Other non-limiting examples of damping unit 54 include the directed varying forces that usually can be produced as the function of pedal actuation speed
Frcition damper or other devices.Although (i.e. side by side) being illustrated with being mutually juxtaposed relation, it is further contemplated that
And understand, 54,56 mutual orientation of device can take any form.For example, device 54,56 can be
Along (see the Fig. 6) of center line C coaxially to each other.
Referring to Fig. 3, brake pedal emulator 44 is additionally may included in brake pedal 42 at the second pivot 50 operationally
It is connected to the connecting elements 58 of device 54,56.The displacement transducer 60 of brake pedal emulator 44 is configurable to measurement braking
At least one displacement (such as linear or angle displacement) in pedal 42 and connecting elements 58.Emulator 44 can also include
At least one pressure sensor 62 of the reaction side (i.e. close to contact site 52) of device 54,56 is usually located at, is applied with measurement
Pressure.It is contemplated that and understand, pressure sensor 62 can be arranged to or adapt to accurately detect, measure or
Person determines to act on the application pressure of the brake pedal either pressure converter of power or other suitable pressure sensors.
In order to optimize system reliability, brake pedal emulator 44 can be included positioned at the different positions of brake pedal device 30
More than one displacement transducer put.Similarly, brake pedal emulator 44 can include for example being configured as output to redundant signals
It is fault-tolerant so as to be provided for sensor fault to more than one pressure sensor (i.e. power) of more than one controller.
In operation, when brake pedal 42 is activated by driver, controller 32 be configured to from each sensor 60,62 and
Displacement signal (see arrow 64) and pressure signal are received via path 38 (see arrow 66).Controller 32 handles the He of displacement signal 64
Pressure signal 66, then appropriate command signal 68 is sent to brake actuator 36 via path 40.It is contemplated that and manage
Solution, signal path 38,40 can be wireless, wired or the combination of the two.
Referring to Fig. 4, an example of the force curve of power induction installation 56 is generically shown as brake-pedal travel T function,
Brake pedal force F that driver is applied is illustrated as in the graph relative to brake-pedal travel T.Real camber line or curve 71 represent
Target distribution, dotted line 73 represent the external boundary (i.e. tolerance limit) of target distribution.Power induction installation 56 can be designed as meeting the target
Distribution 71.
Referring to Fig. 5, an example of damped coefficient distribution is generically shown as brake-pedal travel T function, in curve map
In be illustrated as brake pedal force F that driver is applied relative to damped coefficient D.Real camber line or curve 75 represent target distribution, empty
Line 77 represents the external boundary (i.e. tolerance limit) of target distribution.Similar to power induction installation 56, damping unit 54 can be designed as meeting
The target distribution.It is further contemplated that and understands, can will comes from the target force with goal-selling tolerance limit (i.e. border)
And the data of damping force curve map are programmed in controller 32 to realize various processing functions.Although not being specifically illustrating, can
To be further contemplated that and understand, one or two in device 54,56 are adjustable in various degree, and it is adjusted
Property for example controlled device 32 control, so as to for example meet Fig. 4 and Fig. 5 pre-programmed distribution map.It is further noted that resistance
Buddhist nun's coefficient D is the function of pedal position, and damping force is the function of pedal rate of application and pedal position.
Referring to Fig. 6 and Fig. 7, brake pedal emulator 44 generally respectively at the second pivot 50 and contact site 52, along
Center line C and extend between brake pedal 42 and fixed structure 46.Emulator override device 43 is configured at least partly
Ground selectively and mechanically operates brake assemblies 28 via motion of the brake pedal 42 along center line C.
The brake pedal emulator 44 (also seeing Fig. 2 and Fig. 3) of brake pedal simulated assembly 41 may further include pedestal
Component 72, when brake pedal device 30 is in the BBW patterns of operation, the base component 72 removably connects with fixed structure 46
Close (see Fig. 6 and Fig. 7).Connecting elements 58 may include first end 76 and relative the second end 78, and the first end 76 exists
It is pivotally engaged at second pivot 50 with brake pedal 42, the second end 78 can be increased.Damping unit 54 and power
Induction installation 56 is supported and axially extending between base component 72 and the end 78 of connecting elements 58.As Fig. 6 preferably schemes
Show, when brake pedal 42 is not activated and brake pedal device is in BBW patterns, damping unit 54 and power induction installation 56
Fully can axially it extend along center line C.As Fig. 7 institute preferably shown in, when brake pedal 42 is substantially fully actuated
When, device 54,56 is fully compressed axially.It will also be appreciated that and understand, brake pedal by driver activate and discharge it
Afterwards, power induction installation 56 can also be easy to the return of brake pedal 42.
The emulator override device 43 of brake pedal device 30 includes mechanical linkage device 80 (such as input lever) and locking bolt 82.
When brake pedal device 30 is in BBW patterns, base component 72 is generally bonded to fixed structure 46 and rigid by locking bolt 82
Keep.In one embodiment, locking bolt 82 may include electrical solenoid 84 and screw 85, and whether screw 85 is configured to solenoid
It is electrically excited and extends from solenoid and retract.Solenoid 84 can be controlled by controller 32, and at brake pedal device 30
Solenoid 84 is activated when BBW patterns.In one embodiment, solenoid 84 can be carried by base component 72.Work as helical
When pipe 84 is activated, screw 85 can stretch out from solenoid, and the opening 86 carried into fixed structure 46 or its
In his mechanism.When screw 85 is in opening 86, it can prevent that base component 72 is (i.e. at least axial relative to fixed structure 46
Ground is along center line C) it is mobile, and when brake pedal 42 is activated, device 54,56 is in base component 72 and axially moves
Connecting elements 58 between be axially compressed.
Referring to Fig. 8 and Fig. 9, brake pedal device 30 is illustrated as mechanical standby mode 88.When brake pedal device 30 is in
Mechanical standby mode 88 and when brake pedal 42 is not activated, damping unit 54 and power induction installation 56 can be along center lines
C fully extended (see Fig. 8).As Fig. 9 institute preferably shown in, in the activating of brake pedal 42, and when brake pedal 42 substantially
When being fully actuated, device 54,56 keeps fully extended, and in the normal operation period, as described above, will will not typically simulate
Axial force applies to brake pedal 42.On the contrary, when brake pedal device 30 is in mechanical standby mode 88, the electric spiral shell of locking bolt 82
Spool 84 is de-energized, and screw 85 can be bonded to the end 78 of connecting elements 58.In one example, for the ease of this
Engagement, screw 85 are removedly extend into the opening 90 of the end 78 of connecting elements 58.When brake pedal 42 is activated, lead to
Cross locking bolt 82 and formed between base component 72 and connecting elements 58 and is rigidly connected, these components exist basically as an entirety
Moved on axially along center line C.Moreover, base component 72 does not rejoin (such as rigidly or pivotally) to fixed structure
46, the opposite and structure is in sliding relation (i.e. contact site 52).That is, when base component is in the axial direction with actuating brake pedal
During 42 movement, structure 46 can be in order to guiding and limit the motion of base component 72.It is further contemplated that and understand,
While pedal 42 applies, if solenoid is released, opening 90 may be such that emulator is locked in the one of current location
Series of openings or hole.
Base component 72 may include the first side 92 and the second relative side 94, and the two sets substantially perpendicular to center line C
Put.First side 92 is typically rested on damping unit 54 and power induction installation 56.Second side 94 leans against emulator override device 43
On mechanical linkage device 80.When brake pedal device 30 is in mechanical standby mode 88 and brake pedal 42 is activated by driver,
Base component 72 and connecting elements 58 move in the axial direction, and pedal 42 causes the second side 94 and the mechanical linkage device of base component 72
80 contacts, and such as mechanically moving clutch 80 in the axial direction.Using the motion of mechanical linkage device 80 (see Fig. 9 arrow
96) to activate brake assemblies 28.It is contemplated that and understand, mechanical linkage device 80 as depicted can be or including defeated
Enter or push rod.It will be further appreciated that mechanical linkage device 80 can include for mechanically actuated brake assemblies 28
Miscellaneous part necessary to saying, miscellaneous part include not shown but known more conventional for those skilled in the art
The hydraulic line of brakes, armouring (push/pull) cable, spring (provide necessary power after actuation to cause brake pedal
42 return), and miscellaneous part.
Referring to Figure 10, it is illustrated that the second embodiment of the present invention, wherein the element similar to first embodiment have it is similar
Reference, difference is to the addition of primed suffix.Brake pedal device 30 ' may include fixed structure 46 ', brake pedal simulation
Component 41 ' and emulator override device 43 '.Brake pedal simulated assembly 41 ' includes brake pedal 42 ' and brake pedal is imitated
True device 44 '.Brake pedal 42 ' can be supported by fixed structure 46 ' with activity relationship.As illustrated in a non-limiting example,
Brake pedal 42 ' can pivotally engage on the first pivot 48 ' with fixed structure 46 '.Brake pedal emulator 44 ' can be distinguished
It is between brake pedal 42 ' and fixed structure 46 ' and extends in the second pivot 50 ' and contact site 52 ' (can be the 3rd pivot).System
Dynamic pedal emulator 44 ' generally can be along the center line C directions intersected with the second pivot 50 ' and the 3rd pivot 52 '.Pivot
48 ', 50 ', 52 ' can be with substantially parallel and be spaced from each other.
Brake pedal emulator 44 ' may include damping unit 54 ', power induction installation 56 ', connecting elements 58 ' and pedestal
Component 72 '.In course of normal operation and when brake pedal 42 ' is activated, device 54 ', 56 ' is oriented along center
Line C and compressed between connecting elements 58 ' and base component 72 '.Connecting elements 58 ' can be with brake pedal 42 ' directly
The place of two pivot 50 ' is pivotally engaged, and base component can the place of the 3rd pivot 52 ' directly with fixed structure 46 ' pivotally
Engagement.
Emulator override device 43 ' includes mechanical linkage device 80 ' and is configured at least one of mechanical linkage device 80 '
Divide the electronic lock 82 ' for engaging and discharging from brake pedal emulator 44 '.Mechanical linkage device 80 ' may include to be attached to and/or pass through
The push/pull cable 100 and be pivotally engaged at pivot 104 to the pivot arm 102 of base component that base component 72 ' guides.
The first end 106 of pivot arm 102 can be diametrically protruding from pivot 104, and can pivotally connect at pivot 108
It is connected to connecting elements 58 '.Can with respect to the second end 110 of (being stretched out in the opposite direction in diametric(al)) with first end 106
To carry the electrical solenoid (not shown) of locking bolt 82 '.The screw (not shown) of locking bolt 82 ' is configurable to contract from solenoid 84 '
Enter and stretch out.
When brake pedal device 30 ' is in mechanical standby mode, and when solenoid is de-energized, the spiral shell of locking bolt 82 '
Nail is located in the opening 112 (such as hole) limited by the enlarged ends 114 of the cable 100 of stretching base component 72 '.In
It is that when connecting elements 58 ' is engaged in the cable 100 of mechanical linkage device 80 ', cable 100 will be mobile with connecting elements 58 ',
And so as to mechanically actuated brake assemblies 28.When the screw of locking bolt 82 ' is contracted and is not in opening 112, braking
Pedal equipment 30 ' normally operates in BBW patterns.
Opening 112 positioned at the enlarged ends 114 of cable 100 can be multiple opening (i.e. holes of usual side-by-side alignment
Hole), multiple openings form the arc patterns substantially axially extended relative to center line C.Along path between outside opening
Distance correspond to emulator 44 ' whole stroke (i.e. axial displacement).Regardless of brake pedal position, multiple openings 112
It is easy to the actuating of emulator override device 43 '.So, even if the BBW patterns of operation are that inoperable (i.e. actuating assembly 28 is not
Receive line braking instruction), connecting elements 58 ' continues, then compression damping device 54 and power sensing mobile towards base component 72 '
Device 56.
Referring to Figure 11, it is illustrated that the third embodiment of the present invention, wherein, the member similar with first and/or second embodiment
Part has similar reference, and difference is to the addition of double primed suffix.Brake pedal device 30 " may include fixed structure 46 ",
Brake pedal emulates device assembly 41 " and emulator override device 43 ".Brake pedal emulation device assembly 41 " includes brake pedal
42 " and brake pedal emulator 44 ".Brake pedal 42 " can be supported by fixed structure 46 " with movement relation.Such as a non-limit
Illustrated in property example processed, brake pedal 42 " can be pivotally engaged on the first pivot 48 " with fixed structure 46 ".Brake pedal
Emulator 44 " in the second pivot 50 " and the place of contact site 52 " as the 3rd pivot and brake pedal 42 " and can be consolidated respectively
Determine the engagement of structure 46 ", and extend between.Brake pedal emulator 44 " generally along with the second pivot 50 ' and the 3rd
The intersecting center line C directions of pivot 52 ".Pivot 48 ", 50 " and 52 " is substantially parallel to one another and separated.
Emulator override device 43 " may include mechanical linkage device 80 " and electronic lock 82 ", and electronic lock 82 " is configured to engage
And discharge at least a portion of mechanical clutch 80 ".Mechanical linkage device 80 " may include in the place of pivot 104 " and fixed structure
46 " the pivot arm 102 " being pivotally engaged.The first end 106 " of pivot arm 102 " can radially stretch out from pivot 104 ", so that with
Brake pedal 42 " intermittently contacts.A series of the second end 110 " with openings (hole) is located at and first end 106 "
Relative position.Locking bolt 82 " (e.g. having the electrical solenoid for casting screw) can be supported by structure 46 ", and be configured to
In a series of one of openings that projectile screw is inserted into the second end 110 ".
Advantages and benefits of the present invention include when if there is electric fault can automatically override BBW systems it is low
Cost emergency brake system.It is standby that the minimum change that another advantage includes needing pure BBW emulators provides machinery
Equipment.Another advantage includes complete brakes, and without hydraulic fluid.Further advantage includes can be in master cylinder
Emulator in the line is packaged between pedal push rod.Moreover, the present invention can realize simplified pedal module design and
The compact mechanical part encapsulation of physical integration, while the diagnosis and maintenance of module can be simplified.
Although describing the present invention with reference to exemplary embodiment, it will be appreciated by those skilled in the art that, and
Under conditions of the scope of the present invention, various change can be carried out, and equivalent substitution can be carried out to each element.Separately
Outside, on the premise of without departing from the critical range of the present invention, many modifications can be carried out, specific situation or material are fitted
For the teachings of the present invention.Therefore it is desirable to, the invention is not restricted to specific embodiment disclosed herein, but will includes falling
Enter all embodiments in scope of the present application.
Claims (10)
1. a kind of brake pedal device for actuated vehicle brake assemblies, the brake pedal device includes：
Fixed structure；
Brake pedal emulates device assembly, and it includes brake pedal and brake pedal emulator, the brake pedal with it is described solid
Determine structure to be operatively engaged, the brake pedal emulator is operatively engaged to the fixed structure and institute along center line
Between stating brake pedal, and wherein described brake pedal emulator is configured to the electrically operated brake assemblies；And
Emulator override device, it includes mechanical linkage device and locking bolt, and the mechanical linkage device can be grasped with the brake assemblies
Make ground engagement, the locking bolt be configured to by the mechanical linkage device from the brake pedal emulation device assembly be selectively connected and
Disconnect, and wherein described mechanical linkage device is configured at least in part via fortune of the brake pedal along the center line
Move and mechanically operate the brake assemblies.
2. brake pedal device as claimed in claim 1, wherein the locking bolt includes electrical solenoid and screw, the screw by
The electrical solenoid is activated to engage and separate the mechanical linkage device.
3. brake pedal device as claimed in claim 2, wherein when the electrical solenoid is activated, separate the spiral shell
Nail.
4. brake pedal device as claimed in claim 1, wherein the brake pedal can be movably attached to the fixation
Structure, and wherein described brake pedal emulator include base component, the connecting elements that is engaged with the brake pedal and
For applying the device of axial force between the base component and the connecting elements when operating the brake pedal.
5. brake pedal device as claimed in claim 4, wherein described device include power induction installation and damping unit, described
Described in power induction installation is constructed and arranged to the first power of the axial force changed according to the function of brake-pedal travel being applied to
On brake pedal, the damping unit is constructed and arranged to described in the function change according at least brake pedal rate of displacement
Second power of axial force is applied on the brake pedal.
6. brake pedal device as claimed in claim 4, wherein when the brake pedal device is in brake-by-wire pattern,
The locking bolt is releasably engaged between the fixed structure and the base component, and wherein when the brake pedal is set
For when being in mechanical standby mode, the locking bolt is releasably engaged between the base component and the connecting elements.
7. brake pedal device as claimed in claim 6, wherein when the brake pedal device is in the mechanical stand-by set of dies
During formula, the base component is operably coupled to the mechanical linkage device and activates the mechanical linkage device.
8. brake pedal device as claimed in claim 1, wherein the mechanical linkage device is included in cable, hydraulic mechanism and bar
At least one.
9. brake pedal device as claimed in claim 4, wherein the mechanical linkage device includes arm, first end and second
End, the arm are pivotally engaged with the base component, and the first end mechanically and is releasably connected to described
Brake assemblies, the second end are pivotally engaged with the connecting elements.
10. brake pedal device as claimed in claim 9, wherein the locking bolt is carried by the second end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/230657 | 2016-08-08 | ||
| US15/230,657 US20180037207A1 (en) | 2016-08-08 | 2016-08-08 | Vehicle brake-by-wire system with a brake pedal emulator override device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107697041A true CN107697041A (en) | 2018-02-16 |
Family
ID=60996554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710587387.9A Pending CN107697041A (en) | 2016-08-08 | 2017-07-18 | Vehicle line control brake system with brake pedal emulator override device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180037207A1 (en) |
| CN (1) | CN107697041A (en) |
| DE (1) | DE102017117884A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791848A (en) * | 2019-04-03 | 2020-10-20 | 通用汽车环球科技运作有限责任公司 | Retractable pedal assembly for vehicle |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016218209A1 (en) * | 2016-09-22 | 2018-03-22 | Robert Bosch Gmbh | Brake system control unit for a vehicle |
| US20180093648A1 (en) * | 2016-09-30 | 2018-04-05 | GM Global Technology Operations LLC | Brake pedal emulator of a brake-by-wire system |
| US11891029B2 (en) * | 2020-04-03 | 2024-02-06 | Hl Mando Corporation | Brake system for a vehicle |
| DE102021124879A1 (en) * | 2021-09-27 | 2023-03-30 | HELLA GmbH & Co. KGaA | Pedal emulator for a vehicle |
| IT202200014866A1 (en) * | 2022-07-15 | 2024-01-15 | Brembo Spa | Braking sensation simulator device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115647A (en) * | 2005-02-08 | 2008-01-30 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Brake actuating unit for actuating an automotive braking system |
| CN101508285A (en) * | 2008-01-10 | 2009-08-19 | 株式会社万都 | Vehicle brake device for electronic hydraulic brake system |
| CN104272212A (en) * | 2012-05-03 | 2015-01-07 | Ksr智财控股公司 | Pedal assembly for electronic braking system |
-
2016
- 2016-08-08 US US15/230,657 patent/US20180037207A1/en not_active Abandoned
-
2017
- 2017-07-18 CN CN201710587387.9A patent/CN107697041A/en active Pending
- 2017-08-07 DE DE102017117884.8A patent/DE102017117884A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115647A (en) * | 2005-02-08 | 2008-01-30 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Brake actuating unit for actuating an automotive braking system |
| CN101508285A (en) * | 2008-01-10 | 2009-08-19 | 株式会社万都 | Vehicle brake device for electronic hydraulic brake system |
| CN104272212A (en) * | 2012-05-03 | 2015-01-07 | Ksr智财控股公司 | Pedal assembly for electronic braking system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791848A (en) * | 2019-04-03 | 2020-10-20 | 通用汽车环球科技运作有限责任公司 | Retractable pedal assembly for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017117884A1 (en) | 2018-02-08 |
| US20180037207A1 (en) | 2018-02-08 |
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Application publication date: 20180216 |